DENVER – The Colorado company that brought the first solar-powered light bulbs to market in 2010 has launched two new bulbs that set new standards for affordable lighting, with more than 1 million already sold in developing countries.

Nokero, launched by Colorado native Steve Katsaros, a graduate of the Bard Center for Entrepreneurship (now Jake Jabs Center for Entrepreneurship) at the CU Denver Business School, built the new light bulbs that hold charges longer and are affordably priced, CU said.

All of Nokero’s bulbs contain a solar panel, rechargeable battery and LED lights.

The new bulbs are longer-lasting and brighter and can also charge mobile phones, CU said.

It’s estimated that more than 1.3 billion people live without electricity worldwide.

“This is where doing good business and just plain doing good converge,” Katsaros said. “Every one of our lights and chargers is designed to improve quality of life for the world’s developing regions, and being a part of this solar-powered revolution has been rewarding in all senses of the word.”